<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card >
            <!-- 搜索与添加区域 -->            
            <el-row :gutter="20">
                <el-col :span="7">
                    <el-input @clear="getUserList" clearable placeholder="请输入内容" v-model="queryinfo.query">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区域 -->
            <el-table border stripe
                :data="userlist">
                <el-table-column type="index"></el-table-column>
                <el-table-column prop="username" label="姓名"></el-table-column>
                <el-table-column prop="email" label="邮箱"></el-table-column>
                <el-table-column prop="mobile" label="电话"></el-table-column>
                <el-table-column prop="role_name" label="角色"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-button size="mini" type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row.id)"></el-button>                        
                        <!-- 删除按钮 -->
                        <el-button size="mini" type="danger" icon="el-icon-delete" @click="removeUserById(scope.row.id)"></el-button>
                        <!-- 分配角色按钮 -->
                        <el-tooltip effect="dark" :enterable="false" content="分配角色" placement="top">
                            <el-button size="mini" type="warning" icon="el-icon-setting" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryinfo.pagenum" 
                :page-sizes="[1, 2, 5, 10]"
                :page-size="queryinfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
        </el-card>
        <!-- 添加用户对话框 -->
        <el-dialog
            title="添加用户"
            :visible.sync="addDialogVisible"
            width="50%"
            @close="addDialogClosed">
            <!-- 内容主体区域 -->
            <el-form ref="addFormRef" :model="addForm" :rules="addFormRules" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户对话框 -->
        <el-dialog
            title="修改用户"
            :visible.sync="editdialogVisible"
            width="50%"
            @close="editDialogClosed"
            >
            <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editdialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>

        <!-- 分配角色对话框 -->
        <el-dialog
            title="分配角色"
            :visible.sync="setRoleDialogVisible"
            width="50%" @close="setRoleDialogClosed">
            <div>
                <p>当前的用户：{{userInfo.username}}</p>
                <p>当前的角色：{{userInfo.role_name}}</p>
                <p>分配新角色：
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option
                        v-for="item in rolesList"
                        :key="item.id"
                        :label="item.roleName"
                        :value="item.id">
                        </el-option>
                    </el-select>
                </p>
            </div>
            
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
    data(){
        var checkEmail=(rule,value,cb)=>{
                const regEmail = /^([A-Za-z0-9_-])+@([A-Za-z0-9])+(\.[A-Za-z0-9]+)+/;    
                if(regEmail.test(value))
                {
                    return cb()
                }
                cb(new Error('请输入合法的邮箱！'))
            }
        var checkMobile=(rule,value,cb)=>{
                let regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/ 
                if(regMobile.test(value))
                {
                    return cb()
                }
                cb(new Error('请输入合法的手机！'))
        }
        return{            
            // 获取用户列表的对象
            queryinfo:{
                query:'',
                //当前页数
                pagenum:1,
                // 当前每页显示多少条数据
                pagesize:2
            },
            userlist:[],
            total:0,
            // 控制添加用户对话框的显示与隐藏
            addDialogVisible:false,
            // 添加用户的表单对象
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            // 添加用户的表单规则对象
            addFormRules:{
                username:[
                    {required:true,message:'请输入用户名',trigger:'blur'},
                    {min:3,max:10,message:'用户名长度必须在3-10字符之音',trigger:'blur'}
                ],
                password:[
                    {required:true,message:'请输入密码',trigger:'blur'},
                    {min:6,max:15,message:'密码长度必须在6-15字符之音',trigger:'blur'}
                ],
                email:[
                    {required:true,message:'请输入邮箱',trigger:'blur'},
                    {validator:checkEmail,trigger:'blur'}
                ],
                mobile:[
                    {required:true,message:'请输入手机',trigger:'blur'},
                    {validator:checkMobile,trigger:'blur'}
                ],
            },
            // 控制修改用户对话框的显示与隐藏
            editdialogVisible:false,
            // 查询到的用户信息对象
            editForm:{},
            // 修改用户信息的验证规则对象
            editFormRules:{
                email:[ 
                    {required:true,message:'请输入邮箱',trigger:'blur'},
                    {validator:checkEmail,trigger:'blur'}
                ],
                mobile:[
                    {required:true,message:'请输入手机',trigger:'blur'},
                    {validator:checkMobile,trigger:'blur'}
                ],
            },
            // 控制分配角色对话框的显示与隐藏
            setRoleDialogVisible:false,
            // 需要被分配角色的用户信息
            userInfo:{},
            // 所有角色的数据列表
            rolesList:[],
            // 已选中的角色Id值
            selectedRoleId:'',
        }
    },
    created(){
        this.getUserList();
    },
    methods:{
        async getUserList(){
           const{data:res} = await this.$http.get('users',{params:this.queryinfo})
        //    console.log(res);
           if(res.meta.status!=200){
               return this.$message.error('获取用户列表失败！');
           } 
           this.userlist=res.data.users;
           this.total=res.data.total;
        },
        // 监听pagesize的事件
        handleSizeChange(newSize){
            // console.log(newSize)
            this.queryinfo.pagesize=newSize;
            this.getUserList();
        },
        //监听页码值改变的事件
        handleCurrentChange(newPage){
            // console.log(newPage)
            this.queryinfo.pagenum=newPage;
            this.getUserList();
        },
        async userStateChange(userinfo){
            // console.log(userinfo)
            const{data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
            if(res.meta.status!=200){
                userinfo.mg_state!=userinfo.mg_state;
                return this.$message.error('更新用户状态失败！');
            }
            this.$message.success('用户状态更新成功！');
        },
        // 监听添加用户对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields();
        },
        // 点击按钮，添加用户
        addUser(){
            this.$refs.addFormRef.validate(async valid=>{
                if(!valid)return;
                const{data:res} = await this.$http.post('users',this.addForm)
                if(res.data.status!==201){
                    this.$message.error('添加用户失败！');
                }
                this.$message.success('添加用户成功！');
                // 隐藏添加用户的对话框
                this.addDialogVisible=false;
                //重新获取用户数据列表
                this.getUserList();
            })
        },
        // 展示编辑用户对话框
        async showEditDialog(id){
            console.log(id);
            const{data:res} = await this.$http.get('users/'+id)
            if(res.meta.status!==200){
                return this.$message.error('查询用户信息失败')
            }
            this.editForm=res.data;
            this.editdialogVisible=true;
        },
        // 监听修改用户对话框的关闭事件
        editDialogClosed(){
            this.$refs.editFormRef.resetFields();
        },
        // 修改用户信息并提交
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid=>{
                if(!valid)return;
                // 发起修改用户信息的数据请求
                const{data:res} = await this.$http.put('users/'+this.editForm.id,
                {
                    email:this.editForm.email,
                    mobile:this.editForm.mobile
                });
                if(res.meta.status!==200){
                    return this.$message.error('更新用户信息失败！');
                }
                // 关闭用户对话框
                this.editdialogVisible=false;
                //刷新数据列表 
                this.getUserList();
                // 提示修改成功
                 this.$message.success('更新用户信息成功!');
            })
        },
        // 根据Id删除用户信息并提交
        async removeUserById(id){
            const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err=>{
                return err;
            })
            // 如果确认删除，则返回字符串confirm
            // 如果取消删除，则返回字符串cannel
            // console.log(confirmResult)
            if(confirmResult!=='confirm'){
                return this.$message.info('已取消删除');
            }
            const{data:res} = await this.$http.delete('users/'+id)
            if(res.meta.status!==200){
                this.$message.error('删除用户失败！')
            }
            this.$message.success('删除用户成功！');
            this.getUserList();
        },
        // 展示分配角色的对话框
        async setRole(userInfo){
            this.userInfo=userInfo;
            // 在展示对话框之前，获取所有的角色列表
            const{data:res} = await this.$http.get('roles')
            if(res.meta.status!=200){
                this.$message.error('获取角色列表失败');
            }
            this.rolesList=res.data;
            this.setRoleDialogVisible=true;
        },
        // 点击按钮分配角色
        async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色');
            }
            const{data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
            if(res.meta.status!=200){
                return this.$message.error('更新用户角色失败！');
            }
            this.$message.success('更新用户角色成功！');
            this.getUserList();
            this.setRoleDialogVisible=false;
        },
        // 监听分配角色对话框关闭事件
        setRoleDialogClosed(){
            this.selectedRoleId='';
            this.userInfo={};
        }
    }
}
</script>

<style lang="less" scoped>

</style>